To Create a Draft Datum Plane
1. On the Annotate tab, in the Insert group, click the arrow next to 
Draft Datum, and click Draft Datum Plane. The Select Point dialog box opens.
Draft Datum, and click Draft Datum Plane. The Select Point dialog box opens.2. Select one of the following options on the Select Point dialog box to specify the start point of the datum plane:
◦ Pick Pnt
◦ Vertex
◦ On Entity
◦ Rel Coords
◦ Abs Coords
3. Extend the datum plane to the proper orientation and click to place the endpoint.
4. Type the name for the datum plane. Press Enter.
 | To move or reorient draft datums, select a datum and then click anywhere in the drawing window to relocate or clip it. You can also click Rotate or Translate in the Edit group, on the Annotate tab. |